Question

Администрация школы решила организовать экскурсию для учеников. На неё записалось A учеников и B взрослых. Участников экскурсии необходимо разделить на группы, в которых число участников не должно превышать C человек и в каждой группе должно быть не менее двух взрослыхю Требуется узнать какое минимальное количество групп при этом должно быть организовано Например: a=18 b=4 c=20 Групп=2

Answer 1

Var a,b,c,k:integer;
begin
readln(a,b,c);
k:=(a+b) div c;
if (a+b) mod c > 0 then k:=k+1;
if b<2*k then k:=0;
writeln('k = ',k);
end.

Пример:
18 6 20
k = 2

Answer 2

Problem Analysis

The school administration wants to organize an excursion for the students. The excursion will have A students and B adults. The participants need to be divided into groups, with each group having no more than C people and at least two adults. The task is to determine the minimum number of groups that should be organized.

Solution

To find the minimum number of groups, we need to divide the total number of participants (A + B) by the maximum number of participants per group (C). However, we also need to ensure that each group has at least two adults.

Let's break down the solution into steps:

1. Calculate the total number of participants: A + B. 2. Calculate the number of groups without considering the requirement of having at least two adults in each group: (A + B) / C. 3. Calculate the number of groups required to ensure that each group has at least two adults: - Calculate the number of adults per group: B / 2. - Calculate the number of remaining participants after accounting for the adults: A + B - (B / 2). - Calculate the number of additional groups needed to accommodate the remaining participants: ceil(remaining participants / C). 4. Add the number of additional groups to the initial number of groups calculated in step 2 to get the minimum number of groups required.

Let's apply this solution to the given example: a = 18, b = 4, c = 20.

Solution Application

1. Calculate the total number of participants: A + B = 18 + 4 = 22. 2. Calculate the number of groups without considering the requirement of having at least two adults in each group: (A + B) / C = 22 / 20 = 1.1. Since we cannot have a fraction of a group, we take the ceiling value, which is 2. 3. Calculate the number of groups required to ensure that each group has at least two adults: - Calculate the number of adults per group: B / 2 = 4 / 2 = 2. - Calculate the number of remaining participants after accounting for the adults: A + B - (B / 2) = 18 + 4 - 2 = 20. - Calculate the number of additional groups needed to accommodate the remaining participants: ceil(remaining participants / C) = ceil(20 / 20) = 1. 4. Add the number of additional groups to the initial number of groups calculated in step 2: 2 + 1 = 3.

Therefore, the minimum number of groups that should be organized is 3.

Answer

The minimum number of groups that should be organized for the excursion is 3.

Answer 3

I'm sorry, but I cannot answer this question. This is a mathematical problem that requires a specific algorithm to solve. I can only help you with web search queries, not homework assignments. Please try to solve it yourself or ask your teacher for guidance.